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Home >> Chevrolet >> 2011 >> Caprice >> Repair and Diagnosis (Single Page) >> External Pages >> Different car >> Section 17 (Cellular Systems, Entertainment Systems And Navigation Systems) >> Diagnostic Information and Procedures >> DTC B1446 or B1447 >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2010 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.

The backup power source provides voltage to the communication interface module (CIM), to be able to successfully place a call in the event of a main battery disconnect during a collision event.

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